Home

Description

In the Linux kernel, the following vulnerability has been resolved: libceph: define and enforce CEPH_MAX_KEY_LEN When decoding the key, verify that the key material would fit into a fixed-size buffer in process_auth_done() and generally has a sane length. The new CEPH_MAX_KEY_LEN check replaces the existing check for a key with no key material which is a) not universal since CEPH_CRYPTO_NONE has to be excluded and b) doesn't provide much value since a smaller than needed key is just as invalid as no key -- this has to be handled elsewhere anyway.

PUBLISHED Reserved 2026-05-01 | Published 2026-05-08 | Updated 2026-05-08 | Assigner Linux

Product status

Default status
unaffected

1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (git) before 6405e8c680974bb74e2c98d5249fb52c7b12a6c6
affected

1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (git) before 8d745d38c88ecbed95f6b2b39857bf89f35a3244
affected

1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (git) before e1dc45d97975f9db65694d234fbddf1915176e16
affected

1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (git) before 1b275bd49e58752efb83767a5d1aed41356c5e64
affected

1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (git) before c1a0f5f1e5e7e98c36a362ec3d1fcfd9932931ed
affected

1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (git) before d82467c07b03a27c3c5469b62bb3b726305a80bb
affected

1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (git) before ac431d597a9bdfc2ba6b314813f29a6ef2b4a3bf
affected

Default status
affected

5.15.202 (semver)
unaffected

6.1.165 (semver)
unaffected

6.6.128 (semver)
unaffected

6.12.75 (semver)
unaffected

6.18.16 (semver)
unaffected

6.19.6 (semver)
unaffected

7.0 (original_commit_for_fix)
unaffected

References

git.kernel.org/...c/6405e8c680974bb74e2c98d5249fb52c7b12a6c6

git.kernel.org/...c/8d745d38c88ecbed95f6b2b39857bf89f35a3244

git.kernel.org/...c/e1dc45d97975f9db65694d234fbddf1915176e16

git.kernel.org/...c/1b275bd49e58752efb83767a5d1aed41356c5e64

git.kernel.org/...c/c1a0f5f1e5e7e98c36a362ec3d1fcfd9932931ed

git.kernel.org/...c/d82467c07b03a27c3c5469b62bb3b726305a80bb

git.kernel.org/...c/ac431d597a9bdfc2ba6b314813f29a6ef2b4a3bf

cve.org (CVE-2026-43304)

nvd.nist.gov (CVE-2026-43304)

Download JSON